The gunman identified in the mass shooting in New York on Monday that killed four victims – including a police officer – was a former high school football player who left a note complaining that the sport had given him the brain injury known as CTE.
Detectives are still trying to determine the motive behind 27-year-old Shane Devon Tamura’s shooting spree in 345 Park Avenue in Manhattan on Monday. It ranks as the deadliest firearms attack in New York City in a quarter of a century.
